I don't know about DFW, but Iguassu is like a magnet to lighting strikes. I've lost one DSL modem once (but repaired it with spare parts) and the discharge which blew it came from the phone line and not the power line. I have already told my wife and daughter to ONLY use the cordless phone during thunderstorms. And worst ever: the phone company doens't refund any devices who were damaged due to lightning strikes, even if with a proof that the damage was caused by discharges on the phone line.